In the first pic, that doesn't look like registration or title, at least not Ca. or Az. It looks like that auction description, which has a bunch of mis information.
V.I.N. doesn't match.
Length, is it 17'? Looks like 18 or 19.
Horsepower, 120? Not even close.
Propulsion- propeller...looks like a pump to me.
Vins (Hins) were required in '72, but my 75 doesn't have one.
Between the vin and the cf or az numbers, you should be able to track down title and registration for it.
Can-o-worms
Good luck
Dan'l